One oddity is if using Scroll lock for night missions, you can save that setting in Missions saves (It reloads with night vision on).
However CNTL+End does not remain saved when reloading mission saves.
There's a
setting for that. But if you use that, you need to remove persistent night vision. Took me a while to figure that out.
You can usually gun down everyone close up on the first turn.
In my experience, you shoot (or move, or whatever) and the enemies shoot you right back, unless you luck out and they're facing the wrong way, get killed right off the bat, or some other lucky event. You need smoke to evade this, and that tanks
your chance to hit.
Unless alien reaction shot is at an all time high.
Alien reaction fire is
always at an all time high.